If n = 380 and X = 304, construct a 95% confidence interval for the population proportion, p. Give your answers to three decimals < p <

Q: If a 92% Confidence Interval for the Population Mean is (67.8, 78.9), find its Margin of Error.

A:

Q: If x̄=106​, σ=20​, and n=35​, construct a 99​% confidence interval estimate of the population​ mean,…

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Q: Find the sample size needed if a 98% confidence interval has a 'margin of error' of 4% if .. a) You…

A: From the provided information, Margin of error (E) = 0.04 Confidence level = 98% The z value at 98%…

Q: If an interval estimate is said to be constructed at the 90% confidence level, the confidence…

A: #If an interval estimate is said to be constructed at the 90% confidence level, then confidence…

Q: If n = 400 and X = 25, construct a 99% confidence interval estimate for the population proportion

A: It is given that Sample size n = 400 Numbervof sucessess, X = 25 The critical value of Z at 99%…

Q: If n=360 and P (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given: n=360  , p^=0.48  we have to find margin of error at 95% confidence level

Q: If X=127​, σ=26​, and n=38​, construct a 95​% confidence interval estimate of the population​ mean,…

A: The random variable X follows normal distribution. The sample mean is 127. The population standard…

Q: confidence interval for the proportion of college students who have texted during class was found to…

A: Given

Q: If n=520 and p (p-hat) =0.47, find the margin of error at a 90% confidence level Give your answer to…

A: Given data,n=520p=0.47z-value at 90% confidence is Zc=1.645Margin of error(E)=?

Q: f n = 540 and ˆpp^ (p-hat) = 0.7, construct a 99% confidence interval.Give your answers to three…

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Q: f n = 243 and ˆpp^ = 0.267, construct a 95% confidence interval. Give your answers to three…

A: Given, (1-α)100% = 95%  α= 0.05 Zα2 =Z0.025  = 1.96 Using Excel function=NORMSINV(0.025)

Q: If n = 230 and X = 184, construct a 99% confidence interval for the population proportion, p.Give…

A: Given data n = 230 x = 184 sample proportion

Q: For a research, let's consider the 10-unit sample with s = 32,866 as a preliminary example. For a…

A: Given data,s=32866E=10z-value at 95% confidence is Zc=1.96n=?

Q: If n=500 and (P-hat)=0.6, construct a 90% confidence interval. Give your answers to three decimals.…

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Q: If n=330 and p (p-hat) =0.92, find the margin of error at a 99% confidence level Give your answer to…

A:

Q: If n = 370 and p=0.31p, construct a 90% confidence interval. This should be rounded to three decimal…

A:

Q: If X=101​, σ=26​, and n=39​, construct a 95​% confidence interval estimate of the population​ mean,…

A:

Q: Suppose you had a sample size of 41 and the population distribution was normal. Which approach would…

A: Here we use basic criteria for getting best interval estimation of mean

Q: If n=330 and (p-hat)=0.62, find the margin of error at 95% confidence level  Give your answer to…

A: Given data,n = 340P'= 0.62The z value at 95% confidence  level is zα2 = 1.96Margin of Error (E) =…

Q: If n = 600 and ˆpp^ (p-hat) = 0.25, construct a 95% confidence interval.

A: Given that sample size is n = 600  And the sample proportion is 0.25 At 95% confidence level, the…

Q: If n=360 and p (p-hat) =0.29, find the margin of error at a 95% confidence level Give your answer to…

A: Given that : Sample size (n) = 360 P(hat) = 0.29 Confidence interval is 95%  We use here, Margin of…

Q: If n = 250 and X = 200, construct a 99% confidence interval for the population proportion, p. Give…

A: As given, n = 250 and x = 200.  It is asked to construct a 99% confidence interval for the…

Q: If n=120 and p^ (p-hat) =0.84, find the margin of error at a 95% confidence level Give your answer…

A: Find z-critical value:…

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A: Given that, n = 530 x = 424 Point estimate = sample proportion =  = x / n = 424 /530=0.8 1 -  =…

Q: While it is an uncommon confidence level, find the critical value that corresponds to a confidence…

A: It is given that the confidence level is 0.822.

Q: If is a sample that is used to estimate a population proportion p. What is the 99% confidence…

A: Given  Sample size n=112 and proportion of success p= 0.598

Q: If n = 500 and ˆpp^ (p-hat) = 0.65, construct a 99% confidence interval. Give your answers to three…

A: Given,sample size(n)=500sample proportion(p^)=0.65α=1-0.99=0.01α2=0.005Z0.005=2.58

Q: If n=360 and X = 288, construct a 95% confidence interval. Give your answers to three decimals < p…

A: It is given that x is 288 and n is 360.

Q: n = 480 and X = 384, construct a 90% confidence interval for the population proportion, p. Give…

A: Here is given that, n =480   x = 384 We will use one proportion  z confidence interval.

Q: Calculate a two-sided 95% confidence interval for the population mean. b) In addition, predict the…

A: Given: The sample values given is as follows 24 28 27.75 27 24.25 23.5 26.25 24…

Q: If appropriate, construct a 99% confidence interval for the mean calorie count for all 12-ounce…

A: GivenThe sample size of 12 ounce milk shakes n=11The data of calorie count of 12 ounce milkshake is…

Q: For the confidence interval (24,44), the point estimate is and the margin of error is

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Q: If n=260 and X = 208, construct a 95% confidence interval. Give your answers to three decimals __…

A: Solution: From the given information, X=208, n=260 and the confidence level is 0.95. The sample…

Q: A 90% confidence interval for the proportion of Americans with cancer was found to be (0.185,…

A:

Q: If n=400 and X=100​, construct a 99​% confidence interval estimate for the population proportion

A: According to the given information, we have n = 400 X = 100 Confidence level = 99%

Q: If x̄=89​, σ=13​, and n=70​, construct a 95​% confidence interval estimate of the population​ mean,…

A:

Q: iven the information: the sampled population is normally distributed, X– = 36.5, σ = 3, and n = 20.…

A: Solution-: Given: x¯=36.5,σ=3,n=20 (a) What is the 95% confidence interval estimate for μ? (b) Are…

Q: If n=550 and X = 440, construct a 90% confidence interval. Give your answers to three decimals <p<

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Q: A 95% confidence interval is constructed in order to estimate the proportion of adults who own an…

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Q: If n=360 and p (p-hat) =0.48, find the margin of error at a 95% confidence level Give your answer to…

A: Given data,n=360p=0.48Z value at 95% CI is Zc=1.96Margin of error E=?

Q: If n = 590 and ˆp = 0.94, construct a 95% confidence interval. Give your answers to three decimals…

A: If n = 590 and ˆp = 0.94, construct a 95% confidence interval.   Give your answers to three decimals…

Q: A confidence interval has been determined  to be -6<u<6, what was the sample mean that was used to…

A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Q: If n=330 and p (p-hat) -0.27, find the margin of error at a 90% confidence level Give your answer to…

A:

Q: If n=480 and p^ (p-hat) =0.45, find the margin of error at a 90% confidence level Give your answer…

A:

Q: If n = 380 and ˆ = 0.25, construct a 95% confidence interval. < p < (Give your answers to three…

A: Find z-critical value for 95% confidence level. Refer Standard normal table/Z-table OR use excel…

Q: If n=25, ¯x¯=47, and s=14, construct a confidence interval at a 95% confidence level. Give your…

A:

Q: If n = 560 and ˆpp^ (p-hat) = 0.5, construct a 95% confidence interval. Give your answers to three…

A: Solution : Given : n = 560  p^ = 0.5 The critical value for α=0.05 is zc​=z1−α/2​=1.96 The…

Q: construct a 90% confidence interval.

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Q: Identify the y-score for a95% confidence interval if the sample size is 50.

A: The confidence level is 0.95.

Q: If n = 560 and X = 448, construct a 95% confidence interval for the population proportion, p. Give…

A: The sample proportion is, p^=448560=0.80 The sample proportion is 0.80. Computation of critical…